The Rewa River is the longest and widest river in Fiji. Located on the island of Viti Levu, the Rewa originates from the confluence of the Wainibuka and Wainimala rivers and flows southeast to Laucala Bay near Suva.
Course
The Rewa River is a major river in the eastern part of the island of Viti Levu. It drains the wettest third of the island, making it the largest river in the South Pacific and Fiji.
The Rewa River is fed by two major headwaters, the Wainibuka and Wainimala, and is joined by several other rivers of importance (Waidina, Waimanu) before it reaches the sea by a delta of many mouths. It is navigable by small crafts up 80 kilometers from its mouth and its basin is enriched by a deep deposit of alluvial soil.
Hydrology
The headwaters of the Rewa originate at the Tomanivi (Nadrau Plateau) peak (1,324 m) at an altitude of 700 and 1,000 m above sea level. From there, the river meanders from north to south and flows into the Pacific Ocean with a delta covering an area of 240 square kilometers. Its total length from the source of Wainimala is 167 km and from the source of Wainibuka 172 km. Compared to its small catchment area (3,092 km²), its water discharge is relatively high (annual average 250 m³/s).
About 80–100 kilometres of the river is navigable by small boats. In Nausori, a new 425 m long bridge has been built across the river alongside the existing old bridge with EU funding.